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    Overheating under load

    Update.....changed a couple of things but have not taken the boat to the water yet due to a large oil leak between timing cover and oil pan recently discovered. I did test it with muffs and so far so good, temp stays at 160. I did notice that the temp climbed if i raised the rpms but slowly...
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    Overheating under load

    Found a piece inside circ pump. Checked inside stat housing and nothing there. Also checked hoses to manifolds and nothing there. Port riser and manifold seem to heat up more that the starboard even though both risers and manifolds are new. This is a reman motor running perfect other than the...
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    Overheating under load

    Correct i had a fin from an old impeller that i replaced that i am still looking for it. I took apart the water pump impeller and hose and no success.
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    Overheating under load

    Yes that is correct. Number 28 on the drawing. I found it crushed and broken. I still replaced it but had that concern regarding overheating under load. I also went ahead and replaced 25, 23, 24 and 27 on diagram.
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    Overheating under load

    Guys i have a question regarding a broken seal on the TSK SX-M water intake tube. I kept overheating under load and decided to go ahead and replace manifolds and risers due to age. After replacement still overheating under load. I checked impeller which was new and still in good shape. Circ pump...
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    Overheating at 30mph

    Last i checked upon install it was in good condition. I ordered one just to have peace of mind.
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    Overheating at 30mph

    Engine is raw water cooled. I backflushed from water pump incoming water hose. I opened the cleanout on the outdrive and nothing came out prior to this event. Engine 5.7 dp-sm
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    Overheating at 30mph

    The new impeller has been ordered since its cheap insurance i rather just knock it out. Then while there, review all hoses and hose clamps. Who knows, i might get lucky with it and ends up beign a loose hose.
  9. G

    Overheating at 30mph

    This is leading me to believe that it might be air intrusion into the system. Regardless i will double check everything from A to Z to confirm. The manifold will still be replaced to match the other manifold from Barr.
  10. G

    Overheating at 30mph

    new parts installed upon engine rebuilt, can't really compare to any prior usage.
  11. G

    Overheating at 30mph

    Will double check in the water. Either way that manifold is meant to be replaced. I only changed one because a clear water test was showing me more water flow to one side vs the other. After replacement the issue remained the same. That test was done on a water hose, not at sea. The old manifold...
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    Overheating at 30mph

    I bought the engine that was a paperweight. Engine was rusted bad as well as the outside components. The risers and manifolds where full of rust and as a security i went ahead and replaced. The gaskets where bought according to volvo penta parts search engine. They are the metal fiber composite...
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    Overheating at 30mph

    I don't have a flush port on my engine
  14. G

    Overheating at 30mph

    Got it, i will replace the part.
  15. G

    Overheating at 30mph

    This is the one i have. I backflushed it and it did not show a restriction but will double check.
  16. G

    Overheating at 30mph

    You mean the one that crosses over from outer transom to the back of the engine? I backflushed the engine and water flows out without any issue.
  17. G

    Overheating at 30mph

    Folk i need to pick your brain, i took the boat out today and at idle up to about 15mph temp stays at 160. I went to 30mph and temp spiked and alarm went off. Boat is a 5.7 Penta. I had replaced the impeller a couple of months ago. Risers and one manifold is new. Any ideas what could cause this...
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    New Carb conversion issues 5.7

    Dizzi feel nice and tight but will double check again tomorrow
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    New Carb conversion issues 5.7

    Plenty of fuel to carb visibly, not tested the right way. I disconected hose at carb and tested to see if possible restriction but plenty of fuel seen. But so far it is leading me to think some sort of debris in carb
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    New Carb conversion issues 5.7

    Carb is new Edelbrock 1406, unsure of the fuel pressure but the pump is a new carter p4070. For now it has a inline fuel filter car type. Looking to install fuel water separator. The mechanic installed the pump directly to switch (temporary) while he gets the oil switch. He stated he would...
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